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The ratio of the electron transport rate and gross photosynthesis (ETR/AG) for D. antarctica (A) and C. quitensis (B) in King George (KGI) and Lagotellerie Island (LAG), measured at 10 °C (white bars) or 15 °C (gray bars). Values are means ± SE (n=5–7). Different letters indicate statistically significant differences for each species between populations and measurement temperatures according to Tukey (P<0.05).
